1UKE:
reference: Crystal structure of the complex of UMP/CMP kinase from Dictyostelium discoideum and the bisubstrate inhibitor P1-(5'-adenosyl) P5-(5'-uridyl) pentaphosphate (UP5A) and Mg2+ at 2.2 A: implications for water-mediated specificity., Scheffzek K, Kliche W, Wiesmuller L, Reinstein J, Biochemistry 1996 Jul 30;35(30):9716-27. PMID: 8703943

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